Shoe-machine



0. R. ANGELL. SHOE MACHINE.

APPLICATION FILED NOV.I2,1917.

Patented May 11,1920.

O JgENT R a [is e s /f f.

ATTORNEY WITNESS Z6 UNITED STATES PATENT OFFICE.

OTIS R. ANGELL, OF HAVERHILL, MASSACHUSETTS, ASSIGNOK TO HAMEL SHOEMACHINERY COMPANY, A CORPORATION OF MASSACHUSETTS.

SHOE-MACHINE.

Application filed November 12, 1917. Serial No. 201,524.

To all whom it may concern:

Be it known that I, OTIS R. ANGELL, a citizen of the United States,residin at Haverhill, in the county of Essex and State of Massachusetts,have invented certain new and useful Improvements in Shoe-Machines, ofwhich the following is a specification, reference being had therein tothe accompanying drawings. a

This invention relates to shoe machines and more specifically tomachines adapted to set and burnish the edges of shoe soles.

In machines of this type it is customary to employ a plurality ofoperating tools adapted for use in setting the shank and forepartrespectively of the sole, and to provide means permitting either of suchtools to be presented in position for use and positively locked in saidposition. In machines of said type as at' present commercially known,the tools are supported at the diametrically opposite sides of a pivotedtool holder, and in reversing such tool holder for alternative use ofthe tools it is first necessary to unlock the holder and thereafter toswing the same through 180, whereupon the holder is again locked inposition.

One object of the present invention is to avoid the above awkward andtime-consuming operation by the provision of a single manually operateddevice which serves both as a locking and reversing means for the tools.

Another object of the invention is to so arrange the tools that only arelatively slight movement thereof is necessary in carrying them fromoperative to inoperative position.

Another object of the invention is to pro vide, in a machine of theabove-type employing a vibratory tool-holding head with power drivenmeans engaging said head for vibrating the same, an adjustable wearplate or surface between said driven means and said head whereby to takeup all looseness of parts occasioned by wear, thus securing freedom fromundesirable noise and vibration at all times.

Other and further objects of the invention as well as desirablestructural details and combinations of parts are set forth at length inthe accompanying specification and disclosed in the drawings annexedhereto in which Figure 1 is a perspective view of the tool-Specification of Letters ratent.

holding head of the machine, the drive shaft and supporting parts beingomitted for the sake of clearness of illustration. Fig. 2 is a sectionalview through the tool-holding head at right angles to the drive shaftshowing the end of the drive shaft and the cooperating parts of thehead. Fig. 3 is a'sectional end elevation of a portion of thetool-holding head, the lower part being broken away, and Fig. 1 is adiagrammatic elevational view illustrating the operative mechanism asmounted in position on the machine frame.

This invention relates to an improvement in a machine of the typedescribed in my copending application Serial #201,522, filed November12, 1917, to which reference may be had for a fuller disclosure ofcertain basic elements of the machine.

It is, believed suflicient herein to indicate at 1 a drive shaft whichmay be suitably supported in a frame A of any desired form, said shaftbeing provided at its end with an eccentric pin or cam 2. Near theextreme end of shaft 1 and adjacent the pin 2 is a supporting-member 3which may form a part of the machine frame, or, if desired may be anelement separate therefrom but Vfixed or adjustably secured thereto.Projecting from said supporting-member 3 and substantially in thehorizontal plane of the shaft 1, but spaced therefrom, is a pin or shaft4, said pin being provided with a head 5. Mounted to rock upon said pinand between thehead 5 and the support 3 is a toolcarrying head 6, thishead being free to rock in a vertical plane about the pin 4:.

Projecting laterally from said head are a pair of spaced apart arms 7and 8, said arms being located above and below the shaft 1 and embracingthe same. As herein shown the arm 8 is provided at 9 with a machinedbearing surface. The arm 7 however, is provided centrally thereof with aslot 8 and engaging within said slot, and slidable therein in adirection lengthwise of the arm, is a fin 9' projecting upwardly from aplate 10, said plate being formed as a wedge having its thicker portionadjacent the extremity of arm 7, the lower portion of said plate 10being formed as a bearing surface opposed to the surface 9. In the outerextremity of the plate 10 is formed an opening 11, through which extendsa bent rod '12 having a head 13 below the plate 11 serving to preventdisengagement of the parts. A horizontal portion 14.- of the rod 12extends through a suitably formed opening 15 in the arm 7 and isarranged for'engagement by set screws 1.6, 17 whereby the rod may beadjustably fixed in position, this arrangement permitting a minuteadjustment of bearing surface 10 with respect to the surface 9.

Mounted to slide between the surfaces 9 and 10 and having a journalengagement with the pin 2, is a block 18. It will now be seen that bythe above construction, rotation of the shaft 1 will cause a rapidvibration of the head '6 about the pin 4 in a vertical plane, theadjustable wedge-member permitting of readily compensating the bearingsurfaces for wear.

The head (5 is provided with a downwardly projecting member 19 whichserves as a support for the tool holders; The member 19 is chambered outto form a cavity 20 and leading intosaid cavity from the lower surfaceof said member 19 are a pair of guide "openings 21 and '22, within whichare mounted to slide a pair of tool holders 23 and '24. These toolholders may be pro vided with any suitable means for holding theoperating tool thereupon, such means being herein shown as comprising as ringolip .25 for engagement with the too this clip being of old andwell know-n construc tion and no claims being made herein thereto. Thetool-holding members 23 and 24 are provided at their upper portions withrack-members 26' and 27, said rack-members being arranged in opposingrelation. Projecting transversely through the member 1 9 and havingbearings therein is a shaft 28, said shaft being provided at its centralportion and within the chamber 20 with :a pinion '29, said pinionmeshing with the 'two racks 26 and 27 respectively.

The shaft 28 projects forwardly beyond the side of the member 19, andisprovide'd with an enlarged head 30, said head being bifurcated to formopposed arms 31, 32. Passing through and fixed insaid arms is a pintlepin 33 having pivotally mounted thereupon and located between. said arms-.a lever-member 34. Upon one extremity of lever 34 is mounted a "fingerpiece in the form 'of a flat plate 35 although the specific form ofitliis member is not essential to the invention. Upon the oppositeextremity of the *lever 34 is a latch-member '36, this latchmember beingadapted for locking engage- 'ment with either of 'two openings 37 or 88formed within the face of member 1-9, a spring 39 being provided whichtends *to throw the latch member '86 into looking engagement with one ofsaid openings at all times. Upon the tool holdi'ng members 2.8 and 24are mounted a pair of 'tools as C, D adapted for use upon the shank andfor art of the 'sole respectively. 0n the top of t e head at 40 may, ifdesired,

be provided an oil cup having a suitable passageway for oil leading tothe pin 4.

The operation of this part of the invention will now be clear. At thebeginning of the operation the latch-member 36 is in engagement with oneof the openings, 37 for example, of the member 1 9, the tool holder 23at this time being shown as in lowered position with the tool carriedthereby in proper position for use. The drive shaft being in rotation,the head with the tools thereon is rapidly vibrated, and as the toolcarried by the member 23 for example, is the shank tool, this'will befirst employed. Upon reaching the forepart of the shoe, the operatorwill place his hand or finger upon the member 35 pressing the same todisen gage the latch from its corresponding opening, and at the sametime will swing the lever '34 with its supporting shaft 28 into aposition such that the latch .36 may engage the opposite opening 3-8.

The turning movement of shaft 28 through engagement of pinsion 29 andthe racks 26 and 27 will thereby reverse the position of the toolholders, thus permitting ope-ration upon the forepart of the shoe. Atthe completion of the forepart of the shoe the above operation isreversed bringing the shank tool back to initial position for finishingthe shoe and for beginning "the operation on the succeeding shoe.

While the above disclosure is that of a preferred form 'of invention, itis to be understood that the present invention is :not limited to thedetails 'of-oonstruction shown but is to be "construed as including anyor all modifications of the same within the province of mechanical skillwhich :may he embraced within the scope of the appended claims.

Having thus described the invention what I desire to claim as new and tosecure by Letters Patent of United -States is-:-

1. In a tool-holding head for edge setting machines having a socket fora tool holder, a tool holder slidable in said socket and provided with arack, a pinion meshing with said rack and means iior turning the pinion.

2. In a tool-holding head for edge setting machines having a socket, atool holder slidable in said socket, and means for sliding said toolholder in its socket comprising a rotatable shaft and means for lockingsaid shaft in either of a plurality of positions.

3. In an edge setting machine cf the type disclosed, a pair of tools,means for "supporting said tools in substantially parallel relation, andmeans for alternately moving said tools lengthwise to and from operativeposition.

4:. In a vibrating tool-holding head for edge setting machines,aplurality o f longitudinally retractable tool holders, and means "forprojecting one of said tool holders to operative position and forretracting another of'said tool holders to-inoperative position.

5. In an edge setting machine, in combination, a tool-holding head, apair of tool holders adjustably supported therein, means forsimultaneously longitudinally projecting one of said holders whileretracting the other, and means for locking said holders in adjustedposition.

6. In combination, in a tool-holding head for edge setting machineshaving a pair of sockets, tool holders slidably mounted there in, therespective tool holders being provided with oppositely facing racks, ashaft interposed between said tool holders and having a pinion meshingwith the racks, and

means for turning said shaft.

, 7. In an edge setting machine, in combination, a plurality of toolholders, and, means for alternately moving said tool holders in parallelpaths into and locking them in operative position, said means comprisinga single manually operated member.

8. In an edge setting machine, in combi nation, a pair of tool holdersslidable to and from operative position and means for simultaneouslymoving said tool holders'and locking the same in adjusted position, saidmeans comprising a single manually opera} tive lever.

9. In a locking device for a retractable tool holder, a support having aplurality of openings therein, a rotatable shaft, and a spring-pressedlocking lever carried thereby, said lever being provided with a fingerpiece and having a latch element adapted to engage within one of saidopenings, actuation of the finger piece serving to unlock and rotatesaid shaft.

10. In a tool-holding head for edge setting machines, having aretractable tool holder mounted therein, means for retracting andprojecting said tool holder comprising a rotatable shaft, a leverpivoted to the extremity of said shaft and having upon one end a fingerpiece and at its opposite 'end a latch element, and resilient means forcausing locking engagement of said element with an opening in thetool-holding head.

11. A locking device for the tool holders port, a shaft rotatablymounted thereon, said shaft having a slot in its extremity, a leverpivoted within said slot, a handle upon one end of said lever, a latchelement upon the other end of said lever adapted for engagement withsuitable openings in said support, and a spring-membertending constantlyto project the latch element into locking engagement with one of saidopenlngs.

12. In an edge setting machine having a rotary drive shaft, a support, atool-holding head pivoted to rock thereon, and having opposed guidingsurfaces, means for adjustably positioning one of said surfaces to takeup wear, a block engaging between and slidable upon said surfaces, andmeans for moving said block in a circular path.

13. In an edge setting machine a drive shaft having an eccentric pinthereon, a

block having a journal opening engaging said pin and a tool carryinghead having surfaces engaging said block, one of said surfacescomprising a slidably mounted wedge-plate, and means for adjustablypositioning said plate.

14. In a vibratory, tool-holding head for edge setting machines, anadjustable guiding surface comprising a slidable wedgeplate having anopening in one end thereof, a member engaging .within said opening,means for supporting said member for adjustment, means for fixing saidmember in adjusted position and a driven member engaging said guidingsurface for vibrating the head.

15. In an edge setting machine, a retractable tool holder, a supporthaving a plurality of openings therein, a rotatable shaft, a lockinglever carried thereby, and having a latch element adapted to engagewithin either of said openings, and connections between said. rotatableshaft and said tool holder whereby said tool holder is advanced andretracted by rotation of said shaft.

In testimony whereof I have signed my name to this specification.

OTIS R. ANGELL.

